phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('b8221aa6c5190e1e3a1426b21a7b818a', -1, 1715318151, 1715318151, '038df4c9', -9, 0, 0)

Line : 189
File : sessions.php